OUTLINE: This is a multicenter study. Patients are stratified according to number of prior cytotoxic therapies for advanced disease (1-2 vs more than 2). Patients receive ecteinascidin 743 IV over 3 hours on day 1. Treatment repeats every 3 weeks for at least 2 courses in the absence of disease progression or unacceptable toxicity. Patients are followed every 3 months.